Bigger Fish to Fry
I'm much more worried about Apple's self-disclosed jailbreak problem (http://www.wired.com/threatlevel/2009/07/jailbreak/ for the Wired article and http://www.wired.com/images_blogs/threatlevel/2009/07/applejailbreakresponse.pdf for Apple's claims).
"By tinkering with [iPhone’s BBP - the “baseband processor” software, which enables a connection to cell phone towers], 'a local or international hacker could potentially initiate commands (such as a denial of service attack) that could crash the tower software, rendering the tower entirely inoperable to process calls or transmit data..'”
Apple claims that any jailbroken iPhone can be used to disrupt cell tower service.
Frankly, the cute little SMS issue was a little piece of fluff compared to the national-security-compromising jailbreak problem. Seems to me, in the interest of protecting America, all iPhones should be withdrawn from the market and all existing units returned for a full refund until Apple figures out a way to "fix" this.
They know it. We know it. Hackers know it. It's only a matter of time ...